http://www.mangago.zone/read-manga/if_you_hate_me_that_much/uu/if_you_hate_me_that_much-ch...

R u talking about the lines around the inner thought bubble??

Thought bubbles

No I mean the faint white line going across Kiseon’s nose and down his neck, the straight vertical black line next to Jinhans mouth, the teeny tiny line going through the word “Oh?” In the thought bubble, and then scrolling down before the next panel there are just a whole bunch of half done black squares

I think its just how the site scans the pages. its pictures by pictures if you could say. its nothing :)